How to Design a Lifting Plan for Large UHPC Artistic Shapes? A Full-Process Analysis of Qinglong's Safe and Efficient Hoisting

Lifting plans for large UHPC artistic forms (weighing ≥5t or standing ≥3m tall) must balance safety, precision, and feasibility. Through four core stages—pre-lifting preparation, plan customization, equipment selection, and on-site execution—zero-accident, efficient lifting can be achieved. With 28 years of experience in lifting large components, Qinglong Group completed the lifting of UHPC forms weighing over 10t and standing over 5m tall in the Shanghai Astronomy Museum public art project and the Ouargla Hotel facade project in Algeria, achieving lifting precision within ≤±2mm and earning authoritative industry recognition.

I. Pre-Lifting Preparation: Laying the Safety Foundation

Load and center-of-gravity calculation: Through 3D modeling and physical weighing, the weight and center-of-gravity position of the UHPC form are precisely calculated, and lifting points are determined (≥2 lifting points, symmetrically distributed). Qinglong uses BIM software to simulate the center-of-gravity distribution with error ≤±50mm. Site and environment assessment: The load-bearing capacity of the lifting site (≥1.2 times the lifting weight), working space, and surrounding obstacles are surveyed; the lifting route is cleared and sufficient slewing space is reserved. Qinglong's on-site surveying achieves ±100mm precision, ensuring smooth equipment passage. Lifting device and lifting point design: Lifting devices (vacuum suction cups, wire rope slings) are customized according to the form's characteristics; lifting points use embedded lifting rings or reinforced lifting lugs with tensile strength ≥1.2 times the lifting weight. Qinglong's lifting devices are load-tested with a safety factor ≥1.5.

II. Plan Customization: Scientifically Planning Lifting Details

Lifting method selection: Smaller large forms (5-10t) use single-crane lifting, while extra-large forms (≥10t) use dual-crane coordinated lifting to ensure stable posture. Qinglong used dual-crane tandem lifting for a 12t-class UHPC form, with a smooth, sway-free process. Lifting path optimization: BIM software simulates the entire lifting process to avoid obstacles such as overhead pipelines and buildings, optimizing lifting angle and speed. In the Shanghai New World UHPC faux-wood translucent panel project, path optimization improved lifting efficiency by 30%. Emergency plan development: Response plans are drawn up for unexpected situations such as equipment failure and sudden weather changes, with backup lifting devices and rescue equipment. Qinglong's lifting projects have a 100% emergency plan pass rate, keeping risks under control.

III. Equipment Selection: Matching Form Characteristics with Site Conditions

Crane selection: Cranes are selected according to lifting weight, height, and operating radius, with rated capacity ≥1.5 times the form's weight. Qinglong commonly uses truck cranes (25-100t) and crawler cranes (100-300t) to meet the needs of projects of different scales. Auxiliary equipment configuration: Laser positioning instruments (positioning precision ≤±1mm), guide ropes, and tailing ropes are equipped to control the form's posture and avoid collisions. Qinglong's laser positioning system adjusts the lifting position in real time to ensure precise placement. Lifting device material requirements: Lifting devices are made of high-strength alloy steel with anti-corrosion surface treatment; vacuum suction cup devices have an adsorption force ≥2 times the lifting weight. Qinglong's lifting devices are inspected regularly with a 100% pass rate.

IV. On-Site Execution: Standardized Operations Ensure Safety

Trial lifting inspection: Before formal lifting, a trial lift (lifting height 0.5-1m) is conducted to test the load conditions of the lifting devices and lifting points as well as the stability of the form; formal lifting proceeds only after confirmation. Qinglong strictly implements the "three-inspection system" in trial lifts to eliminate safety hazards. Precise placement: Laser positioning instruments provide real-time position feedback, and supervisors coordinate operations using standardized hand signals and intercom systems to adjust the form's posture to the preset position. Qinglong controls lifting precision within ±2mm for perfect alignment. Fixing and acceptance: After placement, temporary fixing is carried out immediately, followed by installation of permanent connectors. After lifting is completed, visual inspection and strength testing are performed. Qinglong's lifting acceptance pass rate is 100%, ensuring project quality.

V. Qinglong's Lifting Advantages and Project Proofs

Professional team support: A certified lifting team of over 50 people, with an average of more than 8 years of industry experience, can handle lifting needs in complex scenarios. Project proofs: The 3-meter-high UHPC sculpture lifting at the Shanghai Astronomy Museum used single-crane lifting plus laser positioning, achieving successful placement in a single attempt; the lifting of 50mm-thick UHPC hollow panels for the Ouargla Hotel in Algeria overcame the dual challenges of overseas transportation and on-site operation with zero lifting accidents. Technical innovation: Qinglong participated in developing the lifting standards of the "General Technical Specification for Ultra-High Performance Concrete (UHPC) Non-Load-Bearing Components," promoting the industry's standardized development.

The lifting of large UHPC artistic forms requires scientific planning and standardized execution. With full-process control, professional equipment, and extensive experience, Qinglong Group achieves safe and efficient lifting. Choosing a manufacturer with core capabilities in lifting large components is the key to successfully implementing UHPC artistic form projects.